Home / 639,124.41-882,010.14-352,662.95

Finding the Fourth Proportional to 639,124.41, 882,010.14 and 352,662.95

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Solution

The fourth proportional to 639,124.41, 882,010.14 and 352,662.95 is: 486,685.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,124.41 : 882,010.14 = 352,662.95 : x
  2. Step 2: Convert to fraction form
    639,124.41/882,010.14 = 352,662.95/x
  3. Step 3: Cross multiply
    639,124.41x = 882,010.14 × 352,662.95
  4. Step 4: Simplify right side
    639,124.41x = 311,052,293,492.26
  5. Step 5: Solve for x
    x = 311,052,293,492.26/639,124.41
  6. Step 6: Final answer
    x = 486,685.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.